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2 years ago

Find the area of the rhombus. 7.5 yd 13 yd 13 yd 7.5 yd [ ? ] yd2

Mathematics

1 answer:

Doss [256]2 years ago

4 0

Answer:

195

Step-by-step explanation:

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Solve 4(a-3) = 22 solve 5(x -6) = 65 with explanation, please giving 20 points

DaniilM [7]

Step-by-step explanation:

4(a-3)=22

a-3=4-22

a-3=18

a=18+3

a=21

5(x-6)=65

x-6=65-5

x-6=60

×=60+6

x=66

hope it will help u...............

5 0

3 years ago

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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.5 parts

Hunter-Best [27]

Answer:

The value of the test statistic is $t = 2.1$

Step-by-step explanation:

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

The level of ozone normally found is 7.5 parts/million (ppm).

This means that $\mu = 7.5$

The mean of 24 samples is 7.8 ppm with a standard deviation of 0.7.

This means that $X = 7.8, \sigma = 0.7, n = 24$

Test Statistic:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{7.8 - 7.5}{\frac{0.7}{\sqrt{24}}}$

$t = 2.1$

The value of the test statistic is $t = 2.1$

7 0

3 years ago

What is the slope of y-9=3(x-2) A. 3 B. 1/2 C. 2 D. 1/9

pav-90 [236]

Answer:

A. 3

Step-by-step explanation:

y - 9 = 3(x-2)

y = 3x - 6 + 9

y = 3x + 3

slope is 3x = 3

8 0

3 years ago

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I’ll mark brainlist if you help me get the right answer for this

zvonat [6]

Answer: 16% of men wanted sports cars

Step-by-step explanation:

25% - 9% = 16%

6 0

3 years ago

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I literally luv u if u help omg

WINSTONCH [101]

Answer:

9.49

Step-by-step explanation:

Divide 47.45 by five to find the answer.

7 0

3 years ago

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